The cervical spinal cord is the uppermost section of the spinal cord, located in the neck region. It consists of eight segments, labeled C1 to C8, and is responsible for transmitting signals between the brain and the rest of the body. This part of the spinal cord controls various functions, including movement and sensation in the arms, hands, and upper body. Injuries to the cervical spinal cord can lead to significant impairments, such as quadriplegia or loss of sensation. The cervical spinal cord is protected by the vertebrae, which are the bones of the spine, and is surrounded by cerebrospinal fluid that cushions and supports it.